Weewooday 10 Pieces DHT11 Temperature Humidity Sensor Module Digital Single Bus 3.3V-5V, Humidity Measure Range 20%-95% Temperature Measure Range 0-50? with Wires Compatible with Arduino/Raspberry Pi

No issues. Worked as advertised. This is not a precision sensor. But does the trick for hobbyists or around the house in home automation implementation. Mine are paired with D1 minis and openhab.

I have been using DHT11s for some time with ESP8266s and 32s. I run Tasmota on them. This batch I bought, not one read the temp correctly. Reports 1 Celsius and -20% Humidity. I used some other DHT11s I had from another vender/purchase and they work as expected. Went through all 20 of them, not one worked.

I use these in as many projects as I can. They are cheaper than the dht22 but are a bit less accurate. They work well enough for what I'm doing though. I have a few logging data to a grafana instance to average the temperature and humidity in my yard and am using it for a distributed weather station.

I have interfaced a small, not broadly used microcontroller to this device. It was difficult to get reasonable numbers from it because it does (as pointed out in other reviews) behave more like a DHT22 than a DHT11. The numbers coming back were misleading at best, but even when malconstrued, you could still see a rising, falling pattern.Here's how I was able to get reasonable readings. You will still get five bytes of data just as with a DHT11. In this device, treat the first two bytes as a relative humidity (percentage) reading. The whole 16 bits should be a 16 bit integer. Then divide that by floating-point 10.0 to get back a reading in the proper range plus a one digit fraction. I welcome corrections. :)That can be done for the temperature as well. So the readings are in 10ths of a degree/percentage. The DHT11 does things differently -- treating the 1st and 3rd bytes as the whole number part of the reading. It may or may not put a non-zero value into the second byte.To be clear: I treated this thing as a DHT22, had to guess a little about what things meant because I could not find a lot of documentation on the DHT22, but it eventually did work. I hope this helps. No idea whether the DHT22 accuracy is borne out.I like this sensor because it does not have a parasitic LED on it.

These are not dht11 I tried using them with a pico W with thonny and it would say 0°C and 1% humidity, changed the code for a DHT22 and it worked

I have nothing against the DHT11, it does what you pay for and what it was designed for. But, the DHT22 is a better bang for the buck.The large temp range sold me on the DHT22 because I needed to monitor a freezer that went below -10F.DHT11-4F to 140F plus/minus 2%Hum 5% to 95% plus/minus 5%DHT22-40F to 176F plus/minus 0.5%Hum 0% to 100% plus/minus 2%

These are good if you need temp but not super accurate temperature. Make sure you keep them at a distance from the main board(ie esp) as they will pick up the heat they generate.

I've been using DHT11 sensors for over 4 years now. I only have 1 left of my old batch and it truly is the only one in the entire house that works. NONE OF THESE SENSORS FUNCTIONED PROPERLY AT ALL. Garbage quality. SHAME.The markings on the device and the ones in the picture don't even match up. This company is so bad it's laughable.